FFmpeg
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default memory allocator for libavutil More...
#include "config.h"
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "avassert.h"
#include "avutil.h"
#include "common.h"
#include "dynarray.h"
#include "intreadwrite.h"
#include "mem.h"
Go to the source code of this file.
Macros | |
#define | _XOPEN_SOURCE 600 |
#define | ALIGN (HAVE_AVX ? 32 : 16) |
Functions | |
void | av_max_alloc (size_t max) |
Set the maximum size that may me allocated in one block. | |
void * | av_malloc (size_t size) |
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if available on the CPU). | |
void * | av_realloc (void *ptr, size_t size) |
Allocate or reallocate a block of memory. | |
void * | av_realloc_f (void *ptr, size_t nelem, size_t elsize) |
Allocate or reallocate a block of memory. | |
int | av_reallocp (void *ptr, size_t size) |
Allocate or reallocate a block of memory. | |
void * | av_realloc_array (void *ptr, size_t nmemb, size_t size) |
int | av_reallocp_array (void *ptr, size_t nmemb, size_t size) |
void | av_free (void *ptr) |
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). | |
void | av_freep (void *arg) |
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer pointing to it to NULL. | |
void * | av_mallocz (size_t size) |
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if available on the CPU) and zero all the bytes of the block. | |
void * | av_calloc (size_t nmemb, size_t size) |
Allocate a block of nmemb * size bytes with alignment suitable for all memory accesses (including vectors if available on the CPU) and zero all the bytes of the block. | |
char * | av_strdup (const char *s) |
Duplicate the string s. | |
void * | av_memdup (const void *p, size_t size) |
Duplicate the buffer p. | |
int | av_dynarray_add_nofree (void *tab_ptr, int *nb_ptr, void *elem) |
Add an element to a dynamic array. | |
void | av_dynarray_add (void *tab_ptr, int *nb_ptr, void *elem) |
Add an element to a dynamic array. | |
void * | av_dynarray2_add (void **tab_ptr, int *nb_ptr, size_t elem_size, const uint8_t *elem_data) |
Add an element of size elem_size to a dynamic array. | |
static void | fill16 (uint8_t *dst, int len) |
static void | fill24 (uint8_t *dst, int len) |
static void | fill32 (uint8_t *dst, int len) |
void | av_memcpy_backptr (uint8_t *dst, int back, int cnt) |
deliberately overlapping memcpy implementation | |
void * | av_fast_realloc (void *ptr, unsigned int *size, size_t min_size) |
Reallocate the given block if it is not large enough, otherwise do nothing. | |
static int | ff_fast_malloc (void *ptr, unsigned int *size, size_t min_size, int zero_realloc) |
void | av_fast_malloc (void *ptr, unsigned int *size, size_t min_size) |
Allocate a buffer, reusing the given one if large enough. | |
Variables | |
static size_t | max_alloc_size = INT_MAX |
default memory allocator for libavutil
Definition in file mem.c.
#define ALIGN (HAVE_AVX ? 32 : 16) |
Definition at line 62 of file mem.c.
Referenced by av_free(), av_malloc(), and av_realloc().
Definition at line 325 of file mem.c.
Referenced by av_memcpy_backptr().
Definition at line 343 of file mem.c.
Referenced by av_memcpy_backptr().
Definition at line 383 of file mem.c.
Referenced by av_memcpy_backptr().
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inlinestatic |
Definition at line 468 of file mem.c.
Referenced by av_fast_malloc().
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static |
Definition at line 69 of file mem.c.
Referenced by av_malloc(), av_max_alloc(), and av_realloc().